ET INFO Observed Powershell Repo Domain (powershellgallery .com in TLS SNI)
Sourceet/open
CreatedFebruary 17, 2026
UpdatedFebruary 17, 2026
Classificationmisc-activity
alert tls $HOME_NET any -> $EXTERNAL_NET any (msg:"ET INFO Observed Powershell Repo Domain (powershellgallery .com in TLS SNI)"; flow:established,to_server; tls.sni; bsize:21; content:"powershellgallery.com"; fast_pattern; reference:url,www.powershellgallery.com; classtype:misc-activity; sid:2067733; rev:1; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, affected_product Windows_11, affected_product Windows_8, affected_product Windows_10, attack_target Client_Endpoint, created_at 2026_02_17, deployment Perimeter, performance_impact Low, confidence High, signature_severity Informational, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2026_02_17;)
References
Metadata
affected productWindows_10
attack targetClient_Endpoint
created at2026_02_17
deploymentPerimeter
performance impactLow
confidenceHigh
signature severityInformational
tagDescription_Generated_By_Proofpoint_Nexus
updated at2026_02_17
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